1. M.K. Sunkara, “Nanowire based materials for solar cells and batteries”, IIT Madras, Chemical Engineering, December 12, 2008.

2. M.K. Sunkara, “Nanowire based materials for solar energy conversion and storage applications”, Department of Chemical and Materials Engineering, University of Nevada-Reno, NV, October 6, 2008.

3. M.K. Sunkara, “Nanowire Based Hybrid Structures for Solar Cells and Batteries”, Plenary Lecture, MIDEM Conference, Fiesa, Slovenia, 17-19 September 2008. 

4. M.K. Sunkara, “Nanotechnology for Solar Energy Conversion and Storage Challenges”, Professor GJVJ Raju Endowment Lecture organized by the A.P. Akademi of Sciences, Visakhapatnam, A.P., India, January 1, 2008. 

5. M.K. Sunkara, “Current Status and Future Directions in Nanotechnology R&D”, Invited Lecture, CHEMCON 2007, Annual Meeting of the Indian Institute of Chemical Engineers, Kolkata, Dec 27-30, 2007. 

6. M.K. Sunkara, “Bulk Production and Modification of Inorganic Nanowires for Solar Energy Conversion Applications”, Department of Chemical Engineering, Case Western Reserve University, Cleveland, OH, November 15, 2007. 

7. M.K. Sunkara, “Bulk Production and Modification of Inorganic Nanowires for Solar Energy Conversion Applications”, Department of Chemical Engineering, Pennsylvania State University, College Station, PA, October 18, 2007. 

8. M.K. Sunkara, “Inorganic Nanowires: Novel Synthesis Approaches and Applications”, 2006 MRS Fall Meeting, November 27 - December 1, 2006, Boston, MA, USA. 

9. M.K. Sunkara, S. Vaddiraju, J. Thangala, S. Gubbala, B. Deb, S. Desai and G. Sumanasekera, A Scalable Method for the Synthesis of Metal Oxide Nanowires, Invited Presentation, 210th ECS meeting, Cancun, Mexico October 29, 2006 - November 3, 2006. 

10. M.K. Sunkara, “Inorganic Nanowires and Carbon Microtubes: New Synthesis Approaches And Applications”, NANO-2006, Eighth International Conference On Nanostructured Materials, August 20-25, 2006, IISc Bangalore, India. 

11. M.K. Sunkara, “Inorganic Nanowires: Novel Synthesis Approaches and Applications:, NASA Ames Research Center, March (2006). 

12. M.K. Sunkara, H.Li, and A. Chin, Oral Invited Presentation, “Direction-dependent Homo-epitaxial Growth of GaN Nanowires”, Photonics West, SPIE Conference, San Jose, Jan (2006). 

13. M.K. Sunkara, Invited Talk, “Nanowires versus Nanoparticles”, ICCES, Madras, India, Dec 1-6 (2005) 

14. M.K. Sunkara, Invited Talk, “Energy Nanotechnology”, KMSA Conference, Elizabethtown, KY, October (2005). 

15. M.K. Sunkara, “Controlled Synthesis of Inorganic Nanowire, Nanowire Networks and Carbon Microtubes”, Invited Talk, ICON 2005, First Symposium on 1-Dimensional Materials, Taipei, Taiwan, Jan 8-15, 2005. 

16. M.K. Sunkara, “Inorganic Nanowires and Carbon Microtubes”, Invited Lecture, Indo-US Joint Chemical Engineers Conference to be held Mumbai, India, Dec. 27-29, 2004.  

17. M.K. Sunkara, “New Process Concepts for Inorganic Nanowires and Novel Carbon Tubular Structures”, Invited Talk, Department of Chemical Engineering, Clarkson University, Potsdam, NY, November (2005). 

18. M.K. Sunkara, “New Process Concepts for Inorganic Nanowires and Novel Carbon Tubular Structures”, Invited, the Nanoscale Engineering Seminar Series, University of Kentucky, November 4, 2004.

19. M.K. Sunkara, “Chemical Design of Inorganic Nanowires, Nanotubes and Nanowire Networks”, Invited Paper, Optics East, SPIE Conference to be held in Philadelphia, PA, 25-28 Oct. 2004.

20. R.C. Mani, G. Bhimarasetti, and M.K. Sunkara, “Carbon Nanopipettes and Micropipes for Electrochemical Sensing and Microfluidics”, Invited Paper, Optics East, SPIE Conference to be held in Philadelphia, PA, 25-28 Oct. 2004.

21. M.K. Sunkara, “Materials Nanotechnology – A Chemical Engineer’s Perspective”, Invited Lecture, May 12, 2004, Joint Meeting of ACS and AIChE local chapters, Louisville, KY.

22. M.K. Sunkara, “Buk Synthesis of Inorganic Nanowires, Nanotubes and Nanowire Networks”, Invited Keynote Lecture, Particles 2004, Orlando, March 2004.

23. M.K. Sunkara, “Chemical Design of Nanostructures”, Invited Presentation, TMS Annual Meeting, Charlotte, NC, March 2004.

24. M.K. Sunkara, “Bulk Synthesis of Inorganic Nanowires, Nanotubes and Nanowire Networks”, Invited Lecture, National Chemical Laboratory (NCL), Pune, India, December 2003.

25. M.K. Sunkara, “Bulk Synthesis Strategies for Inorganic Nanowires, Nanotubes and Nanowire Networks”, Invited Presentation, CHEMCON 2003, Annual Meeting of Indian Institute of Chemical Engineers held in Bhubaneswar, India, December 2003.

26. M.K. Sunkara, “Carbon Micro- and Nano-Pipettes: Drug Delivery and Neurological Sensing”, Invited Presentation, Western Kentucky University, Bowling Green, KY, Nov. 2003.

27. M.K. Sunkara, “Paradigm Shift in Bulk Synthesis of Inorganic Nanowires and Nanotubes”, Invited Presentation, Flexilec Workshop, Max-Planck Institute (MPI-Halle), June 2-4, 2003, Halle, Germany.

28. M.K. Sunkara, “Nanopipettes: Synthesis and Applications in Opthmology”, Invited Presentation, Opthmology and Visual Sciences, University of Louisville, KY, May 2003.

29. M.K. Sunkara, “Bulk Synthesis of Nanostructures”, Invited Presentation, SMEC 2003, March 24-27, Miami, Florida.

30. M.K. Sunkara, “Bulk Synthesis of Inorganic Nanostructures”, Invited Presentation, National Conference on Nanostructured Materials, IIT Delhi, Dec 5-6, 2002, India.

31. M.K. Sunkara, “Bulk Synthesis of Inorganic Nanowires”, Invited Presentation, Department of Physics and Astronomy, Clemson University, SC, March 2002.

32. M.K. Sunkara, “Bulk Synthesis of Semiconductor Nanowires”, CAMP Seminar, Clarkson University, Potsdam, NY, Summer 2001.